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Best hydraulic oil UK: which bottle fits which job

Updated: 23 October 2026

You want a short list, not a single winner, because the amazon.co.uk Hydraulic Oils rank on 21 October 2026 mixes jack oil, ISO cans, CHF 11S and bicycle mineral oil. The best hydraulic oil UK shoppers can defend is the bottle whose label matches the machine in front of them. Carlube’s 4.7 from 679 reviews and Comma’s 4.8 from 690 would both win a star sort and then go into the wrong filler. It is not a lab test. A qualifying purchase can earn us a commission at no extra cost to you. The full table is the [hydraulic oil comparison](/hub/diy-supplies/hydraulic-oil).

You want a short list, not a single winner, because the amazon.co.uk Hydraulic Oils rank on 21 October 2026 mixes jack oil, ISO cans, CHF 11S and bicycle mineral oil.

Our top picks

Silverhook Silverhook ISO 32 hydraulic oil, 5 litres

Best overall

Silverhook Silverhook ISO 32 hydraulic oil, 5 litres
7.8/10about £23.98
View offer
Carlube Carlube hydraulic jack oil, 500 ml

Rank 2

Carlube Carlube hydraulic jack oil, 500 ml
9.1/10about £8.41
View offer
HMT HMT ISO VG 46 hydraulic oil, 20 litres

Best value

HMT HMT ISO VG 46 hydraulic oil, 20 litres
7.8/10about £65.49
View offer
On this page
  1. 1.No single best hydraulic oil
  2. 2.Best bottle for a trolley or bottle jack
  3. 3.Best ISO 32 can in this set
  4. 4.When the pail or the car fluid is the pick

No single best hydraulic oil

There is no best hydraulic oil in this set. Stars measure how buyers felt about the listing they received. They do not measure whether ISO VG 46 belongs in a Sealey jack. Most DIY pours are a trolley or bottle jack that needs a few hundred millilitres. Some are a splitter whose plate says ISO 32. A few are a tank that is ISO VG 46 or 68 and wants about 20 litres. Bicycle brakes are not on this short list. If you are still unsure which family you are in, use how to choose before you add anything to the basket. Silverhook’s 961 reviews are one pool shared by the 1 litre and 5 litre ASINs.

Best bottle for a trolley or bottle jack

For a trolley or bottle jack whose sheet says jack oil, Carlube XHJ501 is the top pick in this set. It is 500 ml at about £8.41, 4.7 from 679 reviews, with the United Kingdom on the origin line. The viscosity cell says 10W and does not print an ISO VG, so you do not promote it to ISO 32 from a retailer page. The limit is the cap. One reviewer wanted a spout because the filler is a small screw hole, about 6 mm in one note, so use a clean funnel. Carlube is the wrong bottle if the sheet names Sealey HJO500MLS, if the handbook says CHF 11S, or if you are bleeding a bicycle brake. The jack-only choice is trolley jack oil.
Silverhook Silverhook ISO 32 hydraulic oil, 5 litres

Testsieger

Silverhook Silverhook ISO 32 hydraulic oil, 5 litres
7.8/10about £23.98
View offer

Best ISO 32 can in this set

When the plate says ISO 32 and you need more than a cupful, Silverhook’s 5 litre can is the ISO 32 buy here, about £23.98, model SHRH5. The 1 litre can, SHRH1, at about £10.45, is the better buy when you only need a litre. Both show 4.7 from 961 because the review text is one sequence. Count those people once. Reviewers mention jacks, log splitters, an excavator and compressors. Your sheet still wins if it names a different grade. Skip 5 litres for a single jack top-up, or when the plate says ISO VG 46 or 68. Do not blend 32 and 46 to meet in the middle.

When the pail or the car fluid is the pick

HMT ISO VG 46, 20 litres, is the best value on price per litre, at about £65.49, about £3.27 a litre, with 4.7 from 267 reviews. That holds only when the manual says ISO VG 46 and you can use about 20 litres. Ignore the 35 fl oz field and use the 18 kg title pack. One reviewer still had oil on the ground after a stop-leak attempt. This pail is not a cheap jack top-up, and a higher number does not make it ISO 32. Comma CHF 11S at about £14.10, 4.8 from 690, is the pick when the handbook names CHF 11S. Reviewers describe green power-steering fluid and say to match the book. One Jaguar was noisy afterwards. Liqui Moly 2500 at about £19.95 is the pick when the car specifies that oil, mainly Peugeot and Citroën, used unmixed. The saved listing does not call it CHF 11S.

Common questions

What is the best hydraulic oil in this set?
There is not one bottle for every machine. Carlube is the top pick for a jack-oil top-up. Silverhook’s 5 litres is the ISO 32 can when you need more than a litre. HMT’s 20 litre ISO VG 46 pail is best value per litre only if that grade is on the sheet. Comma is the CHF 11S bottle.
Is the cheaper Carlube as suitable as Sealey?
For a sheet that only says jack oil, Carlube at about £8.41 has the larger review sample. Sealey HJO500MLS at about £13.83 is the bottle when the instructions print that part, as on the 2500CX sheet. The amazon file does not include a nozzle and does not say ISO 32.
Which can is the ISO 32 buy?
Silverhook. The 1 litre at about £10.45 is the small top-up. The 5 litre at about £23.98 is the can when you will use more. Treat 4.7 from 961 as one shared pool. The 1 litre SAE cell says 20W-40, and the 5 litre unit count says 4,540 ml against model SHRH5. Use the ISO 32 title.
Why is a 5.0 from three reviews not the winner?
HMT ISO VG 68 is about £78.83, with 5.0 from three ratings and no review text. That sample cannot outrank Carlube’s 679 reviews or HMT 46’s 267. The viscosity cell says 1. Buy the pail only when the sheet already says 68.
Who should skip the bicycle mineral oils?
Anyone topping up a jack, a splitter, an excavator or a car reservoir. Yiezio at about £8.99 and the unbranded pack at about £9.99 are mineral oil for bicycle brakes, ranked under Bike Oils. One reviewer put the unbranded oil into a DOT system.

Related pages

ISO 32 or ISO 46

Hydraulic oil

What hydraulic oil do I need? Family, grade and pack

Hydraulic jack oil for a trolley jack, 500 ml only

How to top up hydraulic jack oil and bleed the air

Sources

Public UK sources and the amazon.co.uk listings compared on this page. Prices and stars are the 21 October 2026 capture. Updated 22 October 2026.

  1. GOV.UK: vehicle and oily wastes (retrieved 22.10.2026)
  2. HSE: hydraulic injection injury (retrieved 22.10.2026)
  3. MA Hydraulics: hydraulic oil cross reference (retrieved 22.10.2026)
  4. Sealey 2100TB instructions (retrieved 22.10.2026)
  5. Comma: MVCHF central hydraulic fluid (retrieved 22.10.2026)
  6. Fuchs UK: TITAN CHF 11S (retrieved 22.10.2026)
  7. Oil Care: waste oil (retrieved 22.10.2026)
  8. Bosch Rexroth: mixing limit (retrieved 22.10.2026)